%0 Journal Article
%T Relaci¨®n entre Clorofila-A y las variables oceanogr¨¢ficas en el ¨¢rea preglaciar del Seno Gallegos (Cordillera Darwin, Chile): bajo condiciones invernales
%A V¨¢squez
%A Osvaldo
%A Pineda
%A Santiago
%A Quiroga
%A Eduardo
%A Jara
%A Bibiana
%A Montiel
%A Am¨¦rico
%J Anales del Instituto de la Patagonia
%D 2012
%I Universidad de Magallanes
%R 10.4067/S0718-686X2012000100018
%X the relationships between chlorophyll a concentration, physical-chemical variables (temperature, salinity, density, total suspended particulate matter) and nutrients (silicate, nitrate, nitrite and phosphate) were determined in the marine periglacial area of the gallegos sound (54¡ã 28'58''s - 69¡ã 50'55''w) in august 2010 (austral winter). twelve stations were studied out directly from the glacier edge to mouth of the sound. at each station, a ctd was deployed and water samples were collected. the water tempera-tures ranged from 3.74 to 6.55 ¡ãc, the salinity from 28.39 to 30.14 psu and chlorophyll a concentrations varied from 0.24 to 2.69 mg m-3; the total particulate matter concentrations varied between 0.12 and 14.0 mg l-1. the silicate concentrations varied between 2.58 and 9.57 ¦Ìm, phosphate between 0.01 and 8.02 ¦Ìm, and nitrate and nitrite values ranged from 0.02 to 30.34 ¦Ìm and 0.01 to 2.99 ¦Ìm, respectively. the chlorophyll a concentration in the sound was significantly correlated with depth, total particulate matter and density (¦Ñ = 0.477), whereas lower correlation values resulted with silicate and phosphate (¦Ñ = 0.463). the lowest significant correlation value was observed with nitrate concentrations (¦Ñ = 0.397). our result suggest that the water column stratification is linked to total particular matter maintaining high chlorophyll a concentrations in the euphotic layer of this cold water estuarine system.
%K brookes bay
%K patagonia
%K oceanography
%K particulate matter
%K estuarine.
%U http://www.scielo.cl/scielo.php?script=sci_abstract&pid=S0718-686X2012000100018&lng=en&nrm=iso&tlng=en